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Ohno I, Kanemoto K, Furuya S, Suzuki Y, Fukuzawa SI. Construction of Diverse Pyrrolidine-Based Skeletons through the Ag-Catalyzed Stereoselective Addition-Elimination Reaction of Azomethine Ylides with Nitroallyl Acetates. Org Lett 2024; 26:1880-1885. [PMID: 38417450 DOI: 10.1021/acs.orglett.4c00184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2024]
Abstract
Because scaffold diversity has a pronounced impact on biological screening, the efficient and expedient construction of skeletally diverse compound collections is a fundamental demand in drug discovery. In this regard, we report here an asymmetric tandem conjugate addition-elimination reaction of pyrroline esters with nitroallyl acetates and its application to the construction of various types of fused or spirocyclic pyrrolidines. A AgOAc/(R,Sp)-ThioClickFerrophos (TCF) catalyst efficiently promotes the addition-elimination reaction, setting vicinal chiral stereocenters featuring a tetrasubstituted carbon with excellent enantio- and diastereoselectivity while leaving the versatile nitroolefin moiety. The broad substrate scope of this reaction and the transformability of the resulting nitroolefin, imine, and ester moieties allow for the construction of diverse pyrrolidine-based fused or spiro bicyclic skeletons in optically active forms by various intramolecular cyclization processes.
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Affiliation(s)
- Itsuki Ohno
- Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Kazuya Kanemoto
- Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, Sendai 980-8578, Japan
| | - Shohei Furuya
- Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Yuko Suzuki
- Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Shin-Ichi Fukuzawa
- Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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2
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Inoue A, Hosono K, Furuya S, Fukuzawa SI. Synthesis of Spirocyclic Pyrrolidine Compounds via Silver-Catalyzed Asymmetric [3 + 2] Cycloaddition Reaction of Imino Esters with α-Alkylidene Succinimides. J Org Chem 2024. [PMID: 38174971 DOI: 10.1021/acs.joc.3c02456] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2024]
Abstract
In this study, the AgOAc/ThioClickFerrophos (TCF) complex was used to successfully catalyze asymmetric [3 + 2] cycloaddition between glycine imino esters and CO2Me-appended α-alkylidene succinimides to afford spiropyrrolidines in good yields with high diastereo- and enantioselectivities (up to 95% ee). The silver/TCF afforded endo-(2,5-cis) cycloadducts in contrast to the previous exo'-(2,5-trans) selective reaction with ylidene-2,3-dioxopyrrolidine. A wide variety of imino esters bearing electron-donating and electron-withdrawing groups on the phenyl groups and heteroaryl substrates were utilized in this reaction. The scope of α-alkylidene succinimides was investigated, which revealed that substituents on α-benzylidene derivatives had negligible effect on the product yield and stereoselectivity, and α-alkylidene derivatives could be efficiently used as dipolarophiles.
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Affiliation(s)
- Ayana Inoue
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Kenya Hosono
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Shohei Furuya
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
| | - Shin-Ichi Fukuzawa
- Department of Applied Chemistry, Institute of Science and Engineering, Chuo University, 1-13-27 Kasuga, Bunkyo-ku, Tokyo 112-8551, Japan
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Sahoo SC, Parida C, Pan SC. Organocatalytic Asymmetric Domino [3+2]-Cycloaddition-Acyl Transfer Reaction between Azomethine Ylides and α-Nitro-α,β-Unsaturated Ketones. Chem Asian J 2023; 18:e202300563. [PMID: 37578733 DOI: 10.1002/asia.202300563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 08/10/2023] [Accepted: 08/14/2023] [Indexed: 08/15/2023]
Abstract
Herein we have developed an organocatalytic asymmetric domino [3+2]-cycloaddition-acyl transfer reaction between in situ generated azomethine ylides and α-nitro-α,β-unsaturated ketones. The desired penta-substituted pyrrolidine products were obtained in high yields and in moderate to good enantio- and diastereoselectivities. Also, an isomerization reaction in silica gel was performed for the formation of another diastereomer in high yields with retention of enantioselectivities.
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Affiliation(s)
- Subas Chandra Sahoo
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam, India, 781039
| | - Chandrakanta Parida
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam, India, 781039
| | - Subhas Chandra Pan
- Department of Chemistry, Indian Institute of Technology Guwahati, North Guwahati, Assam, India, 781039
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Different Behavior of 2-Substituted 3-Nitro-2 H-chromenes in the Reaction with Stabilized Azomethine Ylides Generated from α-Iminoesters. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248983. [PMID: 36558115 PMCID: PMC9784934 DOI: 10.3390/molecules27248983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 12/23/2022]
Abstract
The AgOAc-catalysed reaction of 3-nitro-2-phenyl-2H-chromenes with stabilized azomethine ylides generated from the imines based on methyl glycinate and arylaldehydes leads to a mixture of endo and endo' isomers of the corresponding chromeno[3,4-c]pyrrolidines in a ratio of 2.0-2.3:1 in 85-93% total yields as a result of a Michael addition/Mannich reaction sequence. In a similar reaction involving 2-trifluoromethyl-3-nitro-2H-chromenes, only endo chromeno[3,4-c]pyrrolidines are formed in 85-94% yields. 3-Nitro-2-(trichloromethyl)-2H-chromenes under the same conditions react with these azomethine ylides to give the corresponding Michael adducts as individual anti-isomers with the cis,trans-configuration of the chromane ring in 40-67% yields. Some 4-CF3-substituted chromano[3,4-c]pyrrolidines exhibited high cytotoxic activity against HeLa human cervical carcinoma cells.
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Furuya S, Kanemoto K, Fukuzawa SI. exo'-Selective Construction of Spirobipyrrolidines by the Silver-catalyzed Asymmetric [3+2] Cycloaddition of Imino Esters with 4-Benzylidene-2,3-dioxopyrrolidines. Chem Asian J 2022; 17:e202200239. [PMID: 35486803 DOI: 10.1002/asia.202200239] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 04/14/2022] [Indexed: 11/07/2022]
Abstract
The unprecedented Ag-catalyzed exo ' -selective [3+2] cycloaddition of imino esters with 4-benzylidene-2,3-dioxopyrrolidines is described. The reaction was efficiently catalyzed by AgOAc/( R , S p )-ThioClickFerrophos (TCF) leading to the construction of the corresponding spirobipyrrolidine scaffolds in excellent enantio- and diastereoselectivities. This reaction is the first example of a silver-catalyzed exo ' -selective asymmetric [3+2] cycloaddition, as well as the first exo ' -selective spirobipyrrolidine construction via a [3+2] cycloaddition process using imino esters. The wide substrate scope of this reaction enabled the preparation of structurally diverse spirobipyrrolidine derivatives, which are attracting attention as targets for drug discovery. Mechanistic studies suggested that the unusual exo ' -selectivity of this reaction is not due to epimerization following the common exo - or endo -selective cycloaddition, but instead is due to a stepwise Michael addition/Mannich sequence with bond rotation.
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Affiliation(s)
- Shohei Furuya
- Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga Bunkyo-ku, 112-8551, Tokyo, Japan
| | - Kazuya Kanemoto
- Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga Bunkyo-ku, 112-8551, Tokyo, Japan
- Graduate School of Pharmaceutical Sciences, Tohoku University, 6-3 Aoba, Aramaki, Aoba-ku, 980-8578, Sendai, Japan
| | - Shin-Ichi Fukuzawa
- Faculty of Science and Engineering, Chuo University, 1-13-27 Kasuga Bunkyo-ku, 112-8551, Tokyo, Japan
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Evolution in heterodonor P-N, P-S and P-O chiral ligands for preparing efficient catalysts for asymmetric catalysis. From design to applications. Coord Chem Rev 2021. [DOI: 10.1016/j.ccr.2021.214120] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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7
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Abstract
This short review highlights the recent developments reported in the last four years on the asymmetric construction of chiral rings based on enantioselective domino reactions promoted by chiral metal catalysts.1 Introduction2 Formation of One Ring Containing One Nitrogen Atom3 Formation of One Ring Containing One Oxygen/Sulfur Atom4 Formation of One Ring Containing Several Heterocyclic Atoms5 Formation of One Carbon Ring6 Formation of Two Rings7 Conclusion
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Margalef J, Pàmies O, Pericàs MA, Diéguez M. Evolution of phosphorus-thioether ligands for asymmetric catalysis. Chem Commun (Camb) 2020; 56:10795-10808. [PMID: 32812569 DOI: 10.1039/d0cc04145a] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
In the early 1990s chiral P-thiother ligands emerged as promising ligands in the field of asymmetric catalysis, with the development of many P-thioether ligand families. However, only a few of them have shown a broad reaction and substrate scope. So, compared with other heterodonor ligands such as the widely studied P-N ligands, their impact in asymmetric catalysis was not realised until recently. This has been mainly attributed to the difficulty of controlling the configuration at the sulfur atom when coordinated to the metal. More recently, it has been found that this problem could be solved by a rigorous choice of the ligand scaffold, a process usually aided by mechanistic studies. This allowed the recent discovery of new P-thioether ligand families with a broader versatility, both in reactions and in substrate/reagent scope. This feature article aims to highlight those new P-thioether ligand libraries and the relationship between the structure and catalytic performance.
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Affiliation(s)
- Jèssica Margalef
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain.
| | - Oscar Pàmies
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain.
| | - Miquel A Pericàs
- Institute of Chemical Research of Catalonia (ICIQ), The Barcelona Institute of Science and Technology, Av Països Catalans 16, 43007 Tarragona, Spain and Departament de Química Inorgànica i Orgànica, Universitat de Barcelona, 08028 Barcelona, Spain.
| | - Montserrat Diéguez
- Departament de Química Física i Inorgànica, Universitat Rovira i Virgili, C/Marcel·lí Domingo, 1, 43007 Tarragona, Spain.
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Cunningham L, Benson A, Guiry PJ. Recent developments in the synthesis and applications of chiral ferrocene ligands and organocatalysts in asymmetric catalysis. Org Biomol Chem 2020; 18:9329-9370. [DOI: 10.1039/d0ob01933j] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
This review highlights recent advances in the synthesis and application of ferrocene-containing chiral ligands and organocatalysts in asymmetric catalysis.
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Affiliation(s)
- Laura Cunningham
- Synthesis and Solid State Pharmaceutical Centre
- Centre for Synthesis and Chemical Biology
- School of Chemistry
- University College Dublin
- Dublin 4
| | - Annette Benson
- Centre for Synthesis and Chemical Biology
- School of Chemistry
- University College Dublin
- Dublin 4
- Ireland
| | - Patrick J. Guiry
- Synthesis and Solid State Pharmaceutical Centre
- Centre for Synthesis and Chemical Biology
- School of Chemistry
- University College Dublin
- Dublin 4
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11
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Ray SK, Biswas RG, Suneja A, Sadhu MM, Singh VK. (R)-DM-SEGPHOS-Ag(I)-Catalyzed Enantioselective Synthesis of Pyrrolidines and Pyrrolizidines via (1,3)- and Double (1,3)-Dipolar Cycloaddition Reactions. J Org Chem 2018; 83:2293-2308. [PMID: 29364672 DOI: 10.1021/acs.joc.7b03185] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
An efficient diastereo- and enantioselective route to access a wide range of highly substituted pyrrolidine and pyrrolizidine derivatives has been described via (1,3)- and double (1,3)-dipolar cycloaddition reactions catalyzed by the (R)-DM-SEGPHOS-Ag(I) complex. The reactions proceed smoothly at ambient temperature, affording a variety of pyrrolidines and pyrrolizidines in high yields (up to 93%) with up to 99:1 dr and excellent enantioselectivities (up to 98% ee) without any additives. The newly synthesized pyrrolidine and pyrrolizidine derivatives contain four and seven contiguous stereogenic centers, respectively. Moreover, the synthetic utility of enantioenriched products has been demonstrated by transforming them into various synthetically useful advanced intermediates.
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Affiliation(s)
- Sumit K Ray
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhopal, Madhya Pradesh 462 066, India
| | - Rayhan G Biswas
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhopal, Madhya Pradesh 462 066, India
| | - Arun Suneja
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhopal, Madhya Pradesh 462 066, India
| | - Milon M Sadhu
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhopal, Madhya Pradesh 462 066, India
| | - Vinod K Singh
- Department of Chemistry, Indian Institute of Science Education and Research Bhopal , Bhopal, Madhya Pradesh 462 066, India.,Department of Chemistry, Indian Institute of Technology Kanpur , Kanpur, Uttar Pradesh 208 016, India
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12
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Koizumi A, Matsuda Y, Haraguchi R, Fukuzawa SI. Silver-catalyzed diastereo- and enantioselective Michael additions of 2-oxazoline- and 2-thiazoline-4-carboxylate to nitroalkenes. ACTA ACUST UNITED AC 2017. [DOI: 10.1016/j.tetasy.2017.02.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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13
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Abstract
This review collects the major progress in the field of enantioselective transformations promoted by chiral silver catalysts, covering the literature since 2008, well illustrating the power of these especially mild Lewis acid catalysts to provide novel asymmetric reactions.
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Affiliation(s)
- Hélène Pellissier
- Aix Marseille Univ., CNRS , Centrale Marseille, iSm2, Marseille, France
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15
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Cayuelas A, Ortiz R, Nájera C, Sansano JM, Larrañaga O, de Cózar A, Cossío FP. Enantioselective Synthesis of Polysubstituted Spiro-nitroprolinates Mediated by a (R,R)-Me-DuPhos·AgF-Catalyzed 1,3-Dipolar Cycloaddition. Org Lett 2016; 18:2926-9. [DOI: 10.1021/acs.orglett.6b01273] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Alberto Cayuelas
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad de Alicante, 03080 Alicante, Spain
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, 03080 Alicante, Spain
- Instituto
de Síntesis Orgánica (ISO), Universidad de Alicante, 03080 Alicante, Spain
| | - Ricardo Ortiz
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad de Alicante, 03080 Alicante, Spain
| | - Carmen Nájera
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad de Alicante, 03080 Alicante, Spain
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, 03080 Alicante, Spain
| | - José M. Sansano
- Departamento
de Química Orgánica, Facultad de Ciencias, Universidad de Alicante, 03080 Alicante, Spain
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, 03080 Alicante, Spain
- Instituto
de Síntesis Orgánica (ISO), Universidad de Alicante, 03080 Alicante, Spain
| | - Olatz Larrañaga
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, 03080 Alicante, Spain
- Departamento
de Química Orgánica I, Facultad de Química, Universidad del País Vasco, P. K. 1072, E-20018 San Sebastián, Spain
| | - Abel de Cózar
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, 03080 Alicante, Spain
- Departamento
de Química Orgánica I, Facultad de Química, Universidad del País Vasco, P. K. 1072, E-20018 San Sebastián, Spain
- IKERBASQUE, Basque
Foundation for Science, 48011 Bilbao, Spain
| | - Fernando P. Cossío
- Centro
de Innovación en Química Avanzada (ORFEO−CINQA), Universidad de Alicante, 03080 Alicante, Spain
- Departamento
de Química Orgánica I, Facultad de Química, Universidad del País Vasco, P. K. 1072, E-20018 San Sebastián, Spain
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16
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Recent Advances of 1,3-Dipolar Cycloaddition Chemistry for Alkaloid Synthesisa. ADVANCES IN HETEROCYCLIC CHEMISTRY 2016. [DOI: 10.1016/bs.aihch.2016.03.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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